I have read that the US may pass legislation allowing Canadians to stay for up to 8 months without having to file tax returns.
Also, it looks like many provinces are allowing us to be outside the country/province for up to 7 months.
This is awesome: while I will continue to avoid the US for the foreseeable future, but I am hoping to be able to spend 7 months each year bouncing around Vietnam, Laos, Cambodia, Thailand and, who knows, maybe even Myanmar.
Warm countries, great people, the best food, and cheap.